Double crochet is a very common crochet stitch. It is taller thansingle crochet and half double crochet, and is abbreviated dc. Step 1 Yarn over and insert the hook into the work (fourth chain from hook on starting chain) Step 2 Yarn over and draw yarn through, pulling up a loop. Step 3 Repeat steps 1 and 2 into next stitch (another dc worked up to last step). Step 4 Yarn over and draw through all three loops on hook. 1 dec completed. To decrease any other stitch (hdc, tr, et cetera) work each stitch up to the last step then yarn over and draw through all loops on hook.